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Osa Weather (Next 3 days): The snow forecast for Osa is: Some drizzle, heaviest during Mon morning. Freeze-thaw conditions (max 8°C on Wed afternoon, min 0°C on Mon night). Wind will be generally light.
Osa Weather (Days 4-6): A dusting of snow. Milder later with heavy rain (total 21.0mm) on Sat night. Freeze-thaw conditions (max 10°C on Thu morning, min -4°C on Fri night). Winds decreasing (fresh winds from the NW on Thu night, light winds from the S by Sat morning).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 4 |  | ||||
| Bottom Lift: | 7 | |
Latest snow reports near Osa:
Monday 8 | Tuesday 9 | Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
|  |  |  | |  | | |  |  | |  |  |  | | | |  | |
light rain | some clouds | clear | clear | clear | some clouds | some clouds | some clouds | cloudy | cloudy | light rain | snow shwrs | light snow | snow shwrs | clear | clear | some clouds | heavy rain | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | |
1 | — | — | — | — | — | — | — | — | — | 1 | 2 | — | — | — | — | — | 18 | |
max °C | 7 | 6 | 2 | 5 | 5 | 1 | 7 | 8 | 4 | 10 | 9 | 6 | 0 | -1 | -3 | 4 | 5 | 3 |
min °C | 6 | 3 | 0 | 3 | 1 | 1 | 4 | 4 | 4 | 6 | 6 | 0 | 0 | -3 | -4 | 1 | 1 | 2 |
2 | 0 | -3 | 0 | -3 | -2 | 2 | 3 | 3 | 3 | 2 | -6 | -6 | -9 | -10 | -2 | -2 | -2 | |
82 | 74 | 80 | 73 | 60 | 61 | 44 | 36 | 39 | 39 | 57 | 84 | 95 | 89 | 74 | 52 | 44 | 97 | |
1600 | 1250 | 900 | 1050 | 1150 | 1200 | 1600 | 1900 | 2200 | 1850 | 1800 | 1300 | 600 | 500 | 0 | 1100 | 1700 | 1600 | |
 | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — | 7:07 | — | — | 7:07 | — | — | 7:09 | — | — |
 | — | 4:59 | — | — | 5:00 | — | — | 5:00 | — | — | 5:00 | — | — | 5:00 | — | — | 5:00 | — |
Some drizzle, heaviest during Mon morning. Freeze-thaw conditions (max 8°C on Wed afternoon, min 0°C on Mon night). Wind will be generally light.
A dusting of snow. Milder later with heavy rain (total 21.0mm) on Sat night. Freeze-thaw conditions (max 10°C on Thu morning, min -4°C on Fri night). Winds decreasing (fresh winds from the NW on Thu night, light winds from the S by Sat morning).
Latest snow reports near Osa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 4 Dec 2025 |
| Snow Alerts | Create Alert |
0.1 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.3 | Powder days Fresh snow, limited sun, any wind. |
0.1 | Bluebird days Average snow, mostly sunny, light wind. |
The above table gives the weather forecast for Osa at the specific elevation of 700 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Osa. To access the weather forecasts for the other elevations, use the tab navigation above the table. For a wider view of the weather, check out the Weather Map of Japan.
Click here to read further information on freezing levels and how we forecast our temperatures.
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